9. My father (ra) related to me, that Sa’d ibn `Abdullah on the authority of Ahmad ibn Muhammad ibn `Isa on the authority of al-Husayn ibn Sayf, on the authority of his brother `Ali, on the authority of his father Sayf ibn `Amirah, on the authority of al-Hasan ibn al-Sabbah, he said that Anas informed me, from The Prophet (sw) who said